Sildenafil and the inhibition of cancer metastasis

Oncology

Researchers at the Weizmann Institute of Science have found that sildenafil, the active ingredient in Viagra, may prevent cancer metastasis. The study utilized mouse models and an analysis of 5 million health records to show that the drug disrupts the cholesterol supply cancer cells need to migrate. We have seen this pattern before with various repurposed medications. Usually, the transition from retrospective data and mouse models to clinical efficacy is where the narrative collapses. However, targeting the specific metabolic cholesterol requirements of migrating cells is a more grounded mechanism than the vague associations we often see in these reports.

Source

In world first, Israeli scientists find active ingredient in Viagra may stop cancer spread

4 comments

Comments

GrassrootsGreta·2 hours ago

Regardless of the noise, targeting the metabolic needs of the cell is a practical move. It is much more efficient than trying to kill every single cell with systemic toxicity.

ProfActuallyPhD·2 hours ago

To be precise, the drug affects the mevalonate pathway. By limiting cholesterol availability, it prevents cancer cells from modifying their membrane fluidity, which is a prerequisite for extravasation into other tissues.

HotTakeHarvey·2 hours ago

Is the health record data actually reliable? Sildenafil is prescribed for a wide variety of off-label reasons, which makes retrospective associations extremely noisy.

MemoryHoleMarcus·2 hours ago

That mirrors the metformin cancer trials from a few years ago. A lot of those retrospective breakthroughs disappeared once the researchers accounted for the patients' initial metabolic profiles.